Function DropNativeUser

pg_documentdb/src/commands/users.c:675–703

* DropNativeUser drops a native PostgreSQL role for the user */

 * DropNativeUser drops a native PostgreSQL role for the user
 */
static void
DropNativeUser(const char *dropUser)
{
	/*Verify that native authentication is enabled*/
	if (!IsNativeAuthEnabled)
	{
		ereport(ERROR, (errcode(ERRCODE_DOCUMENTDB_COMMANDNOTSUPPORTED),
						errmsg(
							"Native authentication is not enabled. Enable native authentication on this cluster to perform native user management operations.")));
	}

	ReportFeatureUsage(FEATURE_USER_DROP);

	/*Verify that the calling user is also native*/
	if (IsCallingUserExternal())
	{
		ereport(ERROR, (errcode(ERRCODE_DOCUMENTDB_INSUFFICIENTPRIVILEGE),
						errmsg(
							"Only native users can create other native users. Authenticate as a built-in native administrative user to perform native user management operations.")));
	}

	StringInfo dropUserInfo = makeStringInfo();
	appendStringInfo(dropUserInfo, "DROP ROLE %s;", quote_identifier(dropUser));

	bool readOnly = false;
	bool isNull = false;
	ExtensionExecuteQueryViaSPI(dropUserInfo->data, readOnly, SPI_OK_UTILITY,
								&isNull);
}


/*